159 lines
5.6 KiB
C
159 lines
5.6 KiB
C
/*
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* Copyright © 2020 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Google Author(s): Calder Kitagawa
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*/
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#include "hb-test.h"
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#include "hb-subset-test.h"
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/* Unit tests for CBDT/CBLC subsetting */
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static void
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test_subset_cbdt_noop (void)
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{
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hb_face_t *face = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.ttf");
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hb_set_t *codepoints = hb_set_create ();
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hb_face_t *face_subset;
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hb_set_add (codepoints, 0x38);
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hb_set_add (codepoints, 0x39);
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hb_set_add (codepoints, 0xAE);
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hb_set_add (codepoints, 0x2049);
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hb_set_add (codepoints, 0x20E3);
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face_subset = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints));
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hb_set_destroy (codepoints);
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hb_subset_test_check (face, face_subset, HB_TAG ('C','B','L','C'));
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hb_subset_test_check (face, face_subset, HB_TAG ('C','B','D','T'));
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hb_face_destroy (face_subset);
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hb_face_destroy (face);
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}
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static void
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test_subset_cbdt_keep_one (void)
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{
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hb_face_t *face = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.ttf");
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hb_face_t *face_expected = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.default.39.ttf");
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hb_set_t *codepoints = hb_set_create ();
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hb_face_t *face_subset;
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hb_set_add (codepoints, 0x39);
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face_subset = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints));
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hb_set_destroy (codepoints);
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','L','C'));
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','D','T'));
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hb_face_destroy (face_subset);
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hb_face_destroy (face_expected);
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hb_face_destroy (face);
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}
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static void
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test_subset_cbdt_keep_one_last_subtable (void)
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{
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hb_face_t *face = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.ttf");
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hb_face_t *face_expected = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.default.2049.ttf");
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hb_set_t *codepoints = hb_set_create ();
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hb_face_t *face_subset;
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hb_set_add (codepoints, 0x2049);
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face_subset = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints));
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hb_set_destroy (codepoints);
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','L','C'));
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','D','T'));
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hb_face_destroy (face_subset);
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hb_face_destroy (face_expected);
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hb_face_destroy (face);
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}
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static void
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test_subset_cbdt_keep_multiple_subtables (void)
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{
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hb_face_t *face = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.multiple_size_tables.ttf");
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hb_face_t *face_expected = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.multiple_size_tables.default.38,AE,2049.ttf");
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hb_set_t *codepoints = hb_set_create ();
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hb_face_t *face_subset;
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hb_set_add (codepoints, 0x38);
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hb_set_add (codepoints, 0xAE);
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hb_set_add (codepoints, 0x2049);
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face_subset = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints));
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hb_set_destroy (codepoints);
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','L','C'));
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','D','T'));
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hb_face_destroy (face_subset);
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hb_face_destroy (face_expected);
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hb_face_destroy (face);
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}
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static void
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test_subset_cbdt_index_format_3 (void)
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{
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hb_face_t *face = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.index_format3.ttf");
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hb_face_t *face_expected = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.index_format3.default.38,AE,2049.ttf");
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hb_set_t *codepoints = hb_set_create ();
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hb_face_t *face_subset;
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hb_set_add (codepoints, 0x38);
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hb_set_add (codepoints, 0xAE);
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hb_set_add (codepoints, 0x2049);
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face_subset = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints));
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hb_set_destroy (codepoints);
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','L','C'));
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','D','T'));
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hb_face_destroy (face_subset);
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hb_face_destroy (face_expected);
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hb_face_destroy (face);
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}
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// TODO: add support/tests for index formats 2,4,5 (image formats are treated as
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// opaque blobs when subsetting so don't need to be tested separately).
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// TODO: add a test that keeps no codepoints.
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int
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main (int argc, char **argv)
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{
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hb_test_init (&argc, &argv);
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hb_test_add (test_subset_cbdt_noop);
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hb_test_add (test_subset_cbdt_keep_one);
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hb_test_add (test_subset_cbdt_keep_one_last_subtable);
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// The following use manually crafted expectation files as they are not
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// binary compatible with FontTools.
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hb_test_add (test_subset_cbdt_keep_multiple_subtables);
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// Can use FontTools after https://github.com/fonttools/fonttools/issues/1817
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// is resolved.
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hb_test_add (test_subset_cbdt_index_format_3);
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return hb_test_run();
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}
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